S2FunConcept                    Concept 
S2FunOperations                 Operations
S2FunPlotting                   Plotting
S2FunApproximationInterpolation Approximation and Interpolation
S2FunHarmonicRepresentation     Harmonic Representation
S2Bingham                    	Bingham Distribution
S2FunRadon                      Radon Transform
S2FunVectorField                Vector Field
S2FunAxisField                  Axis Field
S2FunSym                        Symmetric Function
SO3FunConvolution               Convolution
S2FunMultivariate               Multivariate Functions
S2Kernels                       Spherical Kernel Functions
SphericalHarmonics              Spherical Harmonics
S1FunHarmonics                  Fourier Series
